Lily's life is turned upside down when she is forced to leave her friends to spend the summer on a remote ranch with her nature-loving aunt. Convinced her social life is over, she is surprised to meet an unlikely group of friends and embarks on an adventure of a lifetime. When her aunt is threatened by unfriendly neighbors, Lily knows it is up to her and Pistachio, the horse she has discovered an unbreakable bond with, to save the ranch and to find her destiny along the way.